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Date: Sat, 5 Jul 2014 20:42:49 -0700
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Subject: Re: [gentoo-user] How does ssh know to use "pinentry"?
From: Chris Stankevitz <chrisstankevitz@gmail.com>
To: "gentoo-user@lists.gentoo.org" <gentoo-user@lists.gentoo.org>
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On Sat, Jul 5, 2014 at 7:57 PM, Rich Freeman <rich0@gentoo.org> wrote:
> In any case, I suspect that gpg-agent is actually serving passwords to
> openssh, so the file you want is ~/.gnupg/gpg-agent.conf - it probably
> contains the line "pinentry-program /usr/bin/pinentry".  If you trust
> all your X clients you can set the option no-grab in the file which
> will probably allow copy/paste/etc to work with the entry window.

Rich,

Thank you, I will give that a shot.  FYI I discovered:

declare -x GPG_AGENT_INFO="/tmp/gpg-2uVMfE/S.gpg-agent:26095:1"

When I unset this env variable, ssh stopped trying to use pinentry to
acquire my passphrase.  However, I still do not understand how that
variable got set or how/why ssh behaves differently when it is set.

Chris